Got all my welds completed and couldn't be happier, I'll post the pics as soon as I get them off my phone. Thanks to everyone who posted a response to my questions, the advice I received was and is greatly appreciated. I ended up taking a little more time and found a custom fabrication company to back flush and weld them for me.

14, planning on building a single teir HERMS system. MLT and BK have 4 total welds each will have a sight glass, thermometer, ball valve and return and HLT has 6, 4 for everything previously mentioned but with two additional for the coil.

I just had this welded the other day. How does it look to you guys??
My main worry is the little gap on the inside of the ferrule. This is my book kettle so maybe I'm worrying over nothing? Should I leave it out have someone fill the little seam?